@book{52453,
	author = {Orians, Gordon H. and Dirzo, Rodolfo and Cushman, J.Hall},
	title = {Biodiversity and Ecosystem Processes in Tropical Forests},
	publisher = {Springer-Verlag Berlin Heidelberg},
	year = {1996},
	series = {Ecological studies series 122},
	address = {New York}
}